The funniest joke of all time is about a man insulting a woman's ugly baby while riding a bus, according to a study by OnePoll in 2010. The study assessed more than 1,000 jokes and had 36,000 people vote to determine which ranked as the funniest.
The joke revolves around a woman who becomes frustrated after a bus driver calls her baby ugly. She angrily carries her baby to a seat and informs a nearby male passenger that the driver has insulted her. The man, encouraging the woman to go back and reprimand the driver, offers to hold her monkey for her. Although OnePoll acquired the results methodically, there is no reliable way to identify the funniest joke of all time because humor is inherently subjective.